<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
    <!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
		  <swiper-item v-for="(item, i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
		  </swiper-item>
		</swiper>
    <!-- 商品信息区域 -->
    <view class="goods-info-box">
      <!-- 商品的价格 -->
      <view class="goods-price">
        ￥{{ goods_info.goods_price }}
      </view>
      <!-- 商品的主体区域 -->
      <view class="goods-info-body">
        <!-- 商品的名称 -->
        <view class="goods-name">
          {{ goods_info.goods_name }}
        </view>
        <!-- 收藏 -->
        <view class="goods-favi">
          <uni-icons type="star" size="18"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!-- 商品的运费 -->
      <view class="yf">
        快递：免运费
      </view>
    </view>
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    <!-- 商品导航 -->
    <view class="goods-nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
	</view>
</template>

<script>
  import { mapState,mapMutations,mapGetters } from 'vuex'   
	export default {
    computed: {
      ...mapState('m_cart', []),
      ...mapGetters('m_cart', ['total'])
    },
    watch: {
      // total(newVal) {
      //   const findResult = this.options.find(x => x.text === '购物车')
      //   if(!findResult) return
      //   findResult.info = newVal
      // }
      total: {
        handler
        (newVal) {
          const findResult = this.options.find(x => x.text === '购物车')
          if(!findResult) return
          findResult.info = newVal
        },
        immediate: true
      }
    },
		data() {
			return {
				goods_info: {},
   	    options: [{
   			icon: 'shop',
   			text: '店铺',
   			infoBackgroundColor:'#007aff',
   			infoColor:"red"
   		}, {
   			icon: 'cart',
   			text: '购物车',
   			info: 0
   		}],
   	    buttonGroup: [{
   	      text: '加入购物车',
   	      backgroundColor: '#ff0000',
   	      color: '#fff'
   	    },
   	    {
   	      text: '立即购买',
   	      backgroundColor: '#ffa200',
   	      color: '#fff'
   	    }
   	    ]        
   		};
		},
    onLoad(options) {
      const goods_id = options.goods_id
      this.getGoodsDetail(goods_id)
    },
    methods: {
      ...mapMutations('m_cart', ['addToCart']),
      async getGoodsDetail(goods_id) {
        const {data : res} = await uni.$http.get('/api/public/v1/goods/detail', {goods_id})
        if(res.meta.status !== 200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img/g, '<img style="display: block;" ').replace(/.webp/g, '.jpg')
        this.goods_info =  res.message
      },
      preview(i) {
        uni.previewImage({
          current: i,
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      onClick(e) {
        if(e.content.text === '购物车') {
          uni.switchTab({
            url: '/pages/cart/cart'
          })
        }
      },
      buttonClick(e) {
        if(e.content.text === '加入购物车'){
          // { goods_id, goods_name, goods_price, goods_count, goods_small_logo, goods_state }
          const goods = {
            goods_id: this.goods_info.goods_id,
            goods_name: this.goods_info.goods_name,
            goods_price: this.goods_info.goods_price,
            goods_count: 1,
            goods_small_logo:  this.goods_info.goods_small_logo,
            goods_state: true
          }
          
          this.addToCart(goods)
        }
      }
    }
	}
</script>

<style lang="scss">
swiper {
  height: 750rpx;
  image {
    width: 100%;
    height: 100%;
  }
}

.goods-info-box {
  padding: 10px;
  padding-right: 0;
  .goods-price {
    font-size: 18px;
    color: #C00000;
    margin: 10px 0;
  }
  .goods-info-body {
    display: flex;
    justify-content: space-between;
    .goods-name {
      font-size: 13px;
      padding-right: 10px;
    }
    .goods-favi {
      width: 120px;
      font-size: 12px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      border-left: 1px solid #efefef;
      color: gray;
    }
  }
  
  .yf {
    margin: 10px 0;
    font-size: 12px;
    color: gray;
  }
}

.goods-nav {
  position: fixed;
  left: 0px;
  bottom: 0px;
  width: 100%;
}

.goods-detail-container {
  padding-bottom: 50px;
}
</style>
